Re: missing
ET.... If the engine has been sitting for a few months or so, it's possible that the carburetor is somewhat fouled. If so, it will require cleaning.<br /><br />Look at the cam on the front of the timer base (under the flywheel) that slides against the carburetor throttle roller. There is a scribe mark on it. The throttle butterfly should just start to open when that scribe mark is aligned with the center of that roller (exactly).<br /><br />The proper carb adjustment is as follows (just in case someone may have moved it).<br /><br />(Carburetor Adjustment - Single S/S Adjustable Needle Valve)<br /><br />Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.<br /><br />Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running.<br /> <br />Eventually you'll hit the point where the engine wants to die out or it will spit back (sounds like a mild backfire). At that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting. <br /><br />When you have finished the above adjustment, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.
